Forces & Motion

4. is the buildup of electric charge on an object.
7. is a material through which charges can move freely
8. a force that resists the start of sliding motion between two surfaces that are touching.
11. Newtons first law.
12. a push or pull
13. is a property that leads to electromagenetic interactions between the particles that make up matter.
15. is a material through which charges cannot move easily.

1. the area surrounding a magnet where magnetic forces can be detected.
2. its the force that resists the movement of two surfaces that are touching or are moving realative to each other.
3. are a special class of materials that conduct electric charge better than electrical insulators but not as well as electrical conductors
5. Usually when one force is acting on a object.
6. a force of attraction between objects due to their mass
9. when forces act at a distance.
10. two magnets that push eachother apart because of their ends
14. A friction like force that opposes the motion of an object in a fluid.